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ACPI: make _OSI(Linux) console messages smarter

If BIOS invokes _OSI(Linux), the kernel response depends on what the ACPI DMI list knows about the system, and that is reflectd in dmesg: 1) System unknown to DMI: ACPI: BIOS _OSI(Linux) query ignored ACPI: DMI System Vendor: LENOVO ACPI: DMI Product Name: 7661W1P ACPI: DMI Product Version: ThinkPad T61 ACPI: DMI Board Name: 7661W1P ACPI: DMI BIOS Vendor: LENOVO ACPI: DMI BIOS Date: 10/18/2007 ACPI: Please send DMI info above to linux-acpi@vger.kernel.org ACPI: If "acpi_osi=Linux" works better, please notify linux-acpi@vger.kernel.org 2) System known to DMI, but effect of OSI(Linux) unknown: ACPI: DMI detected: Lenovo ThinkPad T61 ... ACPI: BIOS _OSI(Linux) query ignored via DMI ACPI: If "acpi_osi=Linux" works better, please notify linux-acpi@vger.kernel.org 3) System known to DMI, which disables _OSI(Linux): ACPI: DMI detected: Lenovo ThinkPad T61 ... ACPI: BIOS _OSI(Linux) query ignored via DMI 4) System known to DMI, which enable _OSI(Linux): ACPI: DMI detected: Lenovo ThinkPad T61 ACPI: Added _OSI(Linux) ... ACPI: BIOS _OSI(Linux) query honored via DMI cmdline overrides take precidence over the built-in default and the DMI prescribed default. cmdline "acpi_osi=Linux" results in: ACPI: BIOS _OSI(Linux) query honored via cmdline

Len Brown committed 18 years ago

Commit d4b7dc41 parent 7ce95ce3 files · +118 −22Browse files

Showing the changes to include/linux (1 of 3 files). Show all

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include/linux/acpi.h+5−2
@@ -40,6 +40,7 @@ · 39 unmodified lines
40#include <acpi/acpi_drivers.h>40#include <acpi/acpi_drivers.h>
41#include <acpi/acpi_numa.h>41#include <acpi/acpi_numa.h>
42#include <asm/acpi.h>42#include <asm/acpi.h>
43#include <linux/dmi.h>
43 44
44 45
45#ifdef CONFIG_ACPI46#ifdef CONFIG_ACPI
@@ -192,7 +193,9 @@ extern int ec_transaction(u8 command, · 146 unmodified lines
192#endif /*CONFIG_ACPI_EC*/193#endif /*CONFIG_ACPI_EC*/
193 194
194extern int acpi_blacklisted(void);195extern int acpi_blacklisted(void);
195extern void acpi_bios_year(char *s);196#ifdef CONFIG_DMI
197extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d);
198#endif
196 199
197#ifdef CONFIG_ACPI_NUMA200#ifdef CONFIG_ACPI_NUMA
198int acpi_get_pxm(acpi_handle handle);201int acpi_get_pxm(acpi_handle handle);
@@ -226,5 +229,5 @@ static inline int acpi_boot_table_init(void) · 27 unmodified lines
226 return 0;229 return 0;
227}230}
228 231
229#endif /* CONFIG_ACPI */232#endif /* !CONFIG_ACPI */
230#endif /*_LINUX_ACPI_H*/233#endif /*_LINUX_ACPI_H*/